bitpaymer ransomware analysis

This is reflected in the BitPaymer ransom note with a new field of, , as shown above in Figure 2, which contains the Base64-encoded, The ransom note used by DoppelPaymer is similar to those used by the original BitPaymer in 2018. hbspt.cta._relativeUrls=true;hbspt.cta.load(1534169, '41c2461f-48a6-4d00-b6f4-35fbd0ba7b63', {"useNewLoader":"true","region":"na1"}); Stay in the loop with industry insight, cyber security trends, and cyber attack information and company updates. A series of ransomware attacks were first observed in June 2019, containing various modifications, leading researchers to assess that the one or more members of the INDRIK SPIDER have splintered The network enumeration code was updated to parse the victim systems Address Resolution Protocol (ARP) table, retrieved with the command arp.exe -a. BitPaymer has several indicators suggesting overlap with Youll also learn how to: * Create rule sets for all kinds of network traffic, whether crossing a simple LAN, hiding behind NAT, traversing DMZs, or spanning bridges or wider networks * Set up wireless networks with access points, and This book constitutes the refereed proceedings of the 13th IFIP WG 11.8 World Conference on Information Security Education, WISE 13, held in Maribor, Slovenia, in September 2020. Cybersecurity : threats to the financial sector : hearing before the Subcommittee on Financial Institutions and Consumer Credit of the Committee on Financial Services, U.S. House of Representatives, One Hundred Twelfth Congress, first Research and Analysis Research, News and Perspectives Security Reports Ransomware Routine. Compressed 32-bit and 64-bit Process Hacker modules. This new variant was behind a series of ransomware campaigns beginning in June 2019, including attacks against the City of Edcouch, Texas and the Chilean Ministry of Agriculture., We have dubbed this new ransomware DoppelPaymer because it shares most of its code with the BitPaymer ransomware operated by INDRIK SPIDER. The Handbook of Research on Cloud Computing and Big Data Applications in IoT is a pivotal reference source that provides relevant theoretical frameworks and the latest empirical research findings on principles, challenges, and applications This technique is possibly used by the attackers to avoid detection via sandbox analysis Effective C bridges this gap and brings C into the modern era--covering the modern C17 Standard as well as potential C2x features. The network enumeration code was updated to parse the victim systems Address Resolution Protocol (ARP) table, retrieved with the command, . DoppelPaymer Ransomware Payment Portal. 00 00 00 FF 14 0F B8 FF 00 00 00 C3 89 45 FC}$opcodes2 = {61 55 FF 54 B7 01 B0 FF C9 C3 CC 89 45 FC}, (uint16(0) == 0x5a4d) and ($opcodes1 or $opcodes2), 47ff3a11ca6f1c088799afaaafadcd46b89f44ac94b37a49c91f8bae7817be8892520c8e50ce62d5fea875bee31434f43bba4384cade7bba83af640466bb444ea7e54b7f6b6a1305bed3556191ceeaf2babcc902eb4fda6824a9f63fea9267e21eb256ae3752eaae8633c361a26aa763e2688ecf62c1a61fbc2b35e453a31cda3b430ff25391c66899981d2aadf3580cc8115d206ed15a881bb8144dec068b188abc0909a346553236e05f2fa8c12da7925440d084b1513647a3c15614741724e4cbec32e7b4af69195157993bffdd51e4bd2fe2ac5fcc0971033db7233aa2f1d460d9588607933b8cab1844efeff5db. An example of the new ransom note is shown below in Figure 2. In July 2018, the payment portal URL was also removed. For example, in the latest version of BitPaymer, the code for RC4 string obfuscation reverses the bytes prior to encryption, and includes a helper function that provides support for multiple forms of symmetric encryption (i.e., RC4, 128-bit AES, and 256-bit AES), as shown in Figure 3. In our case the attackers use the Dridex samples, we found at least one loader, with filename sdev.exe and SHA-256 h This book describes, in non-technical terms, the definition, history, process, management, and future trends of each intelligence collection source (INT). It changes the registry key - HKCR\mscfile\shell\open\command default value to point at the .cmd file which will cause BitPaymer to run with high privileges without a UAC prompt. Innovative managed cybersecurity | Ready to protect your hybrid infrastructure | Cloud, Networks and Communications | Your hybrid infrastructure, cloud hbbd```b``VSA$S6dIH; -,+"Y`2a &$/V Table 4. *IO 'B. Restart in normal mode and scan your computer with your Trend Micro product for files detected as RANSOM_BITPAYMER.A. Some machines in the client network have been also infected with the DoppelPaymer variant of the As a result, the malware developer had to preserve the random padding bytes in order to correctly decrypt the last data block of an encrypted file. Once loaded, ProcessHackers kernel driver is leveraged to kill the blacklisted processes. The Bit paymer title is still present on the web page and a unique ID is still used to identify the victim. This may suggest that the threat actor who is operating DoppelPaymer has splintered from INDRIK SPIDER and is now using the forked code to run their own Big Game Hunting ransomware operations., Table 6. The latest version of BitPaymer has been used in at least 15 confirmed ransomware attacks since November. Our analysis revealed that on February 18, 2019 PST, between 9:40 p.m. and 11:03 p.m., commands were sent via PsExec to copy and execute the BitPaymer ESET research has found that the ransomware FriedEx, a.k.a. This design was likely intended to hinder automated, In order to terminate some of these processes and services, DopplePaymer uses an interesting technique that leverages, , a legitimate open-source administrative utility. However, there is no evidence that BitPaymers prior or current encryption has been broken. Bitpaymer Ransomware Attribution The group behind BitPaymer , known as the Dridex Group or INDRIK SPIDER, also operates Dridex . This is reflected in the BitPaymer ransom note with a new field of TAIL, as shown above in Figure 2, which contains the Base64-encoded TAIL padding and encrypted AES KEY. Typically, this is implemented by adding zeros or the number n of padding bytes n times (also known as PKCS#7).

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